Given numbers are 390,574,769,821

The least common multiple of numbers can be find using the prime factorization method or LCM formula.

The LCM of 390,574,769,821 is 70666893570.

Find LCM of 390,574,769,821 with Prime Factorization

Multiply the prime numbers at the bottom and the left side.

2 x 195 x 287 x 769 x 821 = 70666893570

Therefore, the lowest common multiple of 390,574,769,821 is 70666893570.

LCM formula is LCM(a1, a2, an) = (a1 x a2 x an)/{GCF(a1 x a2 x an) x common factors}

Firstly, we have to find the product of all the numbers.

390 x 574 x 769 x 821 = 141333787140

Then, let us find the GCF of these five numbers. To do so, we have to list down the factors for each number and choose the highest factor that is in all of the lists.

390 : 1, 2, 3, 5, 6, 10, 13, 15, 26, 30, 39, 65, 78, 130, 195, 390

574 : 1, 2, 7, 14, 41, 82, 287, 574

769 : 1, 769

821 : 1, 821

1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 390,574,769,821, is 1.

Now, the common factors can be found like this.

390:2x 3x 5x 13

574:2x 7x 41

769:769

821:821

From this, we can see that the common factors because they appear for more than two numbers. So, just multiply them all together.

2 = 2

Therefore, the value for common factors is 2.

Now that we have all the elements of the formula, we can plug them in to calculate the LCM.

LCM(a1, a2, an) = (a1 x a2 x an)/{GCF(a1 x a2 x an) x common factors}

LCM = 141333787140/(1x2)

LCM = 141333787140/2

LCM = 70666893570

Thus, we can understand that the LCM of 390,574,769,821 is 70666893570.

Here are some samples of LCM of two or more Numbers calculations.

• LCM of 393, 849, 542, 828
• LCM of 966, 138, 562, 983
• LCM of 554, 148, 946, 225
• LCM of 439, 683, 633, 224
• LCM of 158, 308, 942, 154

1. What is the LCM of 390, 574, 769, 821?

Answer: LCM of 390, 574, 769, 821 is 70666893570.

2. How to calculate the LCM of 390, 574, 769, 821?

The LCM can be found using two methods. You can either use the LCM formula or the prime factorization method to calculate the LCM of 390, 574, 769, 821.

3. What is the LCM formula?

The LCM formula is LCM(a1, a2, an) = (a1 x a2 x an)/{GCF(a1 x a2 x an) x common factors}.